Results 81 to 90 of about 42,411 (234)
Optimization of 3D‐Printed Structured Packings—Current State and Future Developments
Chemie Ingenieur Technik, EarlyView.This paper gives an overview about structured packing development for distillation, surveying heuristic development cycles, computational fluid dynamics simulations, and additive manufacturing techniques. The emerging application of shape optimization to improve packings is emphasized, and its benefits, impact, and limitations are discussed.
Dennis Stucke +3 more
wiley +1 more source
Oikos, EarlyView.Most ecological models of species interactions require many parameters, making them expensive to fit to experimental or observational data. To reduce the number of parameters, species are often divided into groups a priori, for example on the basis of functional or phylogenetic similarity, and species within these groups are assumed to behave ...
Christopher R. P. Brown +1 more
wiley +1 more source
Allee effect in exotic and introduced blowflies [PDF]
Neotropical Entomology, 2011 We combined two models to investigate the theoretical dynamics of five exotic and native blowfly species in response to the Allee effect by using demographic parameters estimated from experimental populations. Most of the results suggest stabilization of dynamic behavior in response to the Allee effect. However, the results depended on the magnitude of
Serra, H, Costa, Mis, Godoy, Wac
openaire +4 more sources
How digitisation of herbaria reveals the botanical legacy of the First World War
PLANTS, PEOPLE, PLANET, EarlyView.Digitisation of herbarium collections is bringing greater understanding to bear on the complexity of narratives relating to the First World War and its aftermath – scientific and societal. Plant collecting during the First World War was more widespread than previously understood, contributed to the psychological well‐being of those involved and ...
Christopher Kreuzer, James A. Wearn
wiley +1 more source
Chaos and Bifurcations of a Leslie-Gower Food Chain with Strong Allee Effect
Discrete Dynamics in Nature and Society, 2015 Allee effect, as an important biological phenomenon, has been considered in many ecosystems, whereas, its influence on interactions of three or more species is little investigated.
Chunshan Xue, Xia Liu
doaj +1 more source
Advances in Difference Equations, 2018 A Lotka–Volterra commensal symbiosis model with first species subject to the Allee effect is proposed and studied in this paper. Local and global stability property of the equilibria are investigated.
Qifa Lin
doaj +1 more source
On certain new exact solutions of a diffusive predator-prey system
, 2012 We construct exact solutions for a system of two nonlinear partial differential equations describing the spatio-temporal dynamics of a predator-prey system where the prey per capita growth rate is subject to the Allee effect. Using the $\big(\frac{G'}{G}\
Kraenkel, R. A. +2 more
core +1 more source
Sustainable Development, EarlyView.ABSTRACT The growing global demand for biofuels has raised concern about compromising food security. This study uses two independent economy‐wide models to evaluate the impact of expanding the Brazilian sugarcane bioenergy system on economic growth, social outcomes and food security.
Angelo C. Gurgel +6 more
wiley +1 more source
Uncertain Logistic population model with Allee effect
Soft Computing, 2022 By considering the influence of various uncertain noises, we established an uncertain Logistic population model with Allee effect, which was characterized by an uncertain differential equation. Firstly, we obtained the solution of the model, and discussed the stability of the equilibrium state.
Caiwen Gao, Zhiqiang Zhang, Baoliang Liu
openaire +1 more source
Shaping expectations, losing flexibility: A study of CEO promises as strategic communication tools
Strategic Management Journal, EarlyView.Abstract Research Summary CEO promises are powerful but understudied communication tools. We develop a dual‐mechanism framework theorizing that while CEO promises elevate stakeholder expectations, they simultaneously constrain strategic flexibility. We argue that CEO promise‐making is shaped by two competing pressures: making more promises when the ...
Majid Majzoubi +2 more
wiley +1 more source